Lyten Sweden is seeking a professional and experienced Principal Engineer withing Manufacturing Engineering function. The Principal Engineer is a senior technical leader responsible for defining, scaling, and optimizing manufacturing processes across one or multiple process areas. This role provides strategic direction, technical authority, and mentorship while driving the process development of next-generation battery technology. The Principal Engineer leads complex, high-impact initiatives from concept through industrialization, including process design, equipment strategy, and factory integration. Acting as a key interface between R&D, operations, quality, and external partners, the role ensures robust, scalable, and cost-efficient manufacturing solutions that support production ramp-up and long-term operational excellence. In addition to hands-on technical contribution, the Principal Engineer establishes engineering standards, drives cross-site alignment, and shapes the technology roadmap for manufacturing processes.